Trifluoroacetic acid → [(3SR,4RS)-3-(3,4-Dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone

HRID 1951092Notes

Reaction equation

HRID 1951092 reaction equation
C(O[C:6](=O)[N:7]([CH:9]1[CH:13]([C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[C:16]([Cl:21])[CH:15]=2)[CH2:12][N:11]([C:22]([CH:24]2[CH2:29][CH2:28][N:27]([C:30]([C:32]3([CH3:35])[CH2:34][CH2:33]3)=[O:31])[CH2:26][CH2:25]2)=[O:23])[CH2:10]1)C)(C)(C)C.FC(F)(F)C(O)=O.C(=O)([O-])[O-].[Na+].[Na+]>ClCCl>[Cl:21][C:16]1[CH:15]=[C:14]([CH:13]2[CH:9]([NH:7][CH3:6])[CH2:10][N:11]([C:22]([CH:24]3[CH2:29][CH2:28][N:27]([C:30]([C:32]4([CH3:35])[CH2:33][CH2:34]4)=[O:31])[CH2:26][CH2:25]3)=[O:23])[CH2:12]2)[CH:19]=[CH:18][C:17]=1[Cl:20]

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 10340Sodium CarbonateHCID 67025619HCID 67025619, compound

Product 1

HCID 67025815[(3SR,4RS)-3-(3,4-Dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanoneYield 73%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Under an atmosphere of nitrogen was added to a solution of {(3RS,4SR)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester (3.02 g, 5.61 mmol) in dichloromethane (30 mL) at ambient temperature trifluoroacetic acid (4.3 mL, 56 mmol) and stirred for 20 h at this temperature. The reaction mixture was added slowly onto an aqueous solution of sodium carbonate (1M, 60 mL). The organic layer was separated and washed with brine (50 mL). The aqueous layers were extracted with dichloromethane (30 mL) and the combined organic layers were dried over sodium sulfate. Purification by chromatography (SiO2, heptane:ethyl acetate:methanol=50:50:0 to 0:90:10) afforded the title compound (1.79 g, 73%) as a light brown oil. MS m/e: 438.3 [M]+.

Workup

  1. customThe organic layer was separated
  2. washwashed with brine (50 mL)
  3. extractionThe aqueous layers were extracted with dichloromethane (30 mL)
  4. dry with materialthe combined organic layers were dried over sodium sulfate
  5. customPurification by chromatography (SiO2, heptane:ethyl acetate:methanol=50:50:0 to 0:90:10)

Sources & evidence

ORD record
ord-8aeca0d8f51c4051a8b19fbafce9bbc4
Source dataset
uspto-grants-2013_03
Patent number
US08404679B2

Reaction notes

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